The design
How it works
Seven layers on two rails. The raw filings are kept exactly as filed; every layer after the vault can be rebuilt from them.
Seven layers
From raw filing to receipted answer.
- LibraryBuilt to hold every filing on SEC EDGAR, as it is published.
- VaultEach raw filing, stored once and never changed.
- LedgerEvery fact as a statement with three dates: the period it describes, when it was said, when it was recorded.
- DictionaryWhat every fact and every link means.
- MapBuilt to link companies, people and filings.
- AnalystBuilt to follow threads across filings. Checks every claim against its source.
- ProductAnswers, each with its receipts. Alerts are next.
Two rails
Two rules every layer keeps.
Provenance
No receipt, no answer. Every claim points at the exact words it came from.
Time
Built so you can ask as of any date and get only what was public then.
Before any answer is shown
Five checks before an answer is shown.
- The quoted words are re-read from the original filing.
- Every number comes from the ledger; derived figures are computed by code, never by a model.
- Each sentence is checked against its source.
- The answer is checked for completeness against the question, when its time and budget allow.
- Anything that cannot be supported is named, not hidden.
Contact
Investor, analyst, or just curious?
We would like to hear from you.
Get in touchvab5296@psu.edu